This 1968 Buick GS400 2-Dr Hardtop is 1 of only 8869 built. The classic muscle car is powered by a 400 ci V8 that puts out 340 HP and 440 Ft-Lbs of Torque). Equipped with a TH400 Automatic, column shift, and 2022 rebuilt rear diff with 3.73 Limited Slip. This car was optioned with Power…